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...ontrasts. There is a package vignette that shows examples for a basic two-way layout and a design with repeated measures. The desirability package contains S3 classes for multivariate optimization using the desirability function approach of Harrington (1965) using the functional forms described by Derringer and Suich (1980). There are functions for maximization, minimization, hitting a target, box constraints and a function for creating arbitrarily shaped desirability equations. There is also a package vignette that shows an example of a multi-response surface experiment. Please send me emails for s...

...ontrasts. There is a package vignette that shows examples for a basic two-way layout and a design with repeated measures. The desirability package contains S3 classes for multivariate optimization using the desirability function approach of Harrington (1965) using the functional forms described by Derringer and Suich (1980). There are functions for maximization, minimization, hitting a target, box constraints and a function for creating arbitrarily shaped desirability equations. There is also a package vignette that shows an example of a multi-response surface experiment. Please send me emails for s...

...wn as frailty models. * csampling (1.1-3) Alessandra R. Brazzale http://crantastic.org/packages/csampling Monte Carlo conditional inference for the parameters of a linear nonnormal regression model * desire (1.0.5) Olaf Mersmann http://crantastic.org/packages/desire Harrington and Derringer-Suich type desirability functions * difR (1.0) Sebastien Beland http://crantastic.org/packages/difR The difR package contains several traditional methods to detect DIF in dichotomously scored items. Both uniform and non-uniform DIF effects can be detected, with methods relying upon item...